SRAM EX1: the drivetrain specifically for e-MTBs

EX1 is the world’s first drivetrain system specifically developed for e-MTBs

Designed from the ground up to offer a different gear range, bigger steps between gears and to better deal with the low-cadence high-torque pedalling typically done on e-MTBs.

Only recently we saw Shimano unveil their ‘XT for e-bikes‘ – E8000 – but this new offering from their rivals SRAM is much more of from-the-ground-up re-working of how an e-MTB gear system should work in their opinion.

Starting from scratch

As such, EX1 is the first and only drivetrain available today that was designed from the ground up specifically for E-MTBs. SRAM say that EX1 has been designed using information from motor manufacturers as well as SRAM’s own ideas of what the usual issues are with e-MTB gears.

As with SRAM’s other new drivetrains, it’s a single-ring affair with a large cassette. As well as the advantages mentioned above, the system also claims to be quieter, more durable and offer increased battery life over existing e-MTBs that use standard MTB drivetrains.